in peril britain was at the end of the 20 century. to discuss this, my colleague spoke to an economist, the author who left after taking part in protests in 1989, and a writer on risk in geopolitics. first, we take stock of how the land lies. >> the paramount fear -- the crowd is diverse the of all code come to take part in a production of a change their lives. they call it naturalization here. to you and me, that means becoming a u.s. citizen. cheesy, yes, to see one of the ceremonies is to grasp the essence of america. >> this is one of those only in america plummets. this is part of a living -- legal process. this is all wrapped into kind of a movie experience. it says, "i am honored to congratulate you on becoming a citizen of the united states. because of your determination, this great nation, is now your nation, sign, sincerely, barack obama." >> america is vexed by doubts, but that has not put them off. fresh blood is coming faster than ever before. >> the racism and everything you encounter, i don't feel that here. >> they give me so much freedom. freedom to do anything i want.